Question 1

What factors influence whether a population is growing or declining?

Accepted Answer

Crude birth and death rate

IMR

TFR

Access to education

Postponement of marriage

Question 2

What is Malthusian theory?

Accepted Answer

Population growth is exponential, but food/resource growth is linear, so population will eventually exceed resources leading to decline

(criticized for being mostly incorrect and often having racist implications)

Question 3

What are density-independent factors?

Accepted Answer

Factors that affect population growth regardless of the population size, such as natural disasters

Question 4

What are density-dependent factors?

Accepted Answer

Factors that affect population growth due to the population's size, such as competition for resources and disease transmission

Question 5

What is the rule of 70?

Accepted Answer

A formula used to approximate the time it takes for a population to double

Question 6

What is the formula for the Rule of 70?

Accepted Answer

(with a 2.5% growth rate: 70/2.5 = 28 years to double)

Question 7

How do you calculate a population's annual percent change?

Accepted Answer

Question 8

How do you calculate population growth rate?

Accepted Answer

3.8 Human Population Dynamics, AP Environmental Science Flashcards